Ben arrives in the Concrete Grove to research a book about the Northumbrian Poltergeist, an infamous paranormal incident from the early 1970s. A set of twins were haunted by a spirit they nicknamed Captain Clickety, and the media of the time were split between derision and hysteria. As Ben teases out the supressed details of the story, he finds himself drawn to an emotionally damaged woman whose young daughter went missing years ago during a period of similar child abductions. Then the scarecrows appear, their heads plastered with photographs of the missing and the dead. House pets are found slaughtered, their bodies built into bloody totems. Hummingbirds flock to certain areas of the estate, as if awaiting the arrival of something... A door has been opened and a presence is about to step through. The Hummingbird Twins, beset by strange visions, might know the secret, but they aren't talking. It is up to Ben to put the ghosts to rest and unravel fact from fiction. He is about to discover that the story he seeks is in fact his own story, and only he can plot the ending.